TRACTION CONTROL SYSTEM
PROBLEM TO BE SOLVED: To provide a traction control system which can perform brake torque control when a road is changed to a split μ road from a low μ road, and can secure the acceleration performance of a vehicle.SOLUTION: A traction control system comprises: a hydraulic control unit HU which can...
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| creator | SAITO TAKAMASA |
| description | PROBLEM TO BE SOLVED: To provide a traction control system which can perform brake torque control when a road is changed to a split μ road from a low μ road, and can secure the acceleration performance of a vehicle.SOLUTION: A traction control system comprises: a hydraulic control unit HU which can independently impart brake torque to drive wheels of a vehicle; wheel speed sensors 2FL, 2FR, 2RL, 2RR which detect speeds of the respective wheels; drive wheel left-and-right speed difference detection means which calculates a drive wheel left-and-right speed difference V; brake torque control means which imparts brake torque to the drive wheels in accordance with the speeds of the respective drive wheels; and first operation start speed threshold determination means which determines a start speed of the brake torque control. When the drive wheel left-and-right speed difference is larger than a drive wheel left-and-right speed difference threshold, the first operation start speed threshold determination means changes the control start speed to a lower value when the difference is smaller than the threshold.
【課題】 低μ路からスプリットμ路へ変化したときに制動トルク制御を作動させることができ、車両の加速性能を確保できるトラクションコントロールシステムを提供する。【解決手段】 車両の各駆動輪に対して独立に制動トルクを付与可能な液圧制御ユニットHUと、各車輪の速度を検出する各車輪速センサ2FL,2FR,2RL,2RRと、駆動輪左右速度差 VDLRを算出する駆動輪左右速度差検出手段と、各駆動輪の速度に応じて各駆動輪に制動トルクを付与する制動トルク制御手段と、制動トルク制御の開始速度を決定する第１の作動開始速度閾値決定手段と、を備え、第１の作動開始速度閾値決定手段は、駆動輪左右速度差が駆動輪左右速度差閾値よりも大きい場合には小さい場合よりも制御開始速度を小さく変更する。【選択図】 図１ |
| format | Patent |
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【課題】 低μ路からスプリットμ路へ変化したときに制動トルク制御を作動させることができ、車両の加速性能を確保できるトラクションコントロールシステムを提供する。【解決手段】 車両の各駆動輪に対して独立に制動トルクを付与可能な液圧制御ユニットHUと、各車輪の速度を検出する各車輪速センサ2FL,2FR,2RL,2RRと、駆動輪左右速度差 VDLRを算出する駆動輪左右速度差検出手段と、各駆動輪の速度に応じて各駆動輪に制動トルクを付与する制動トルク制御手段と、制動トルク制御の開始速度を決定する第１の作動開始速度閾値決定手段と、を備え、第１の作動開始速度閾値決定手段は、駆動輪左右速度差が駆動輪左右速度差閾値よりも大きい場合には小さい場合よりも制御開始速度を小さく変更する。【選択図】 図１</description><language>eng ; jpn</language><subject>ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL ; BLASTING ; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL ; COMBUSTION ENGINES ; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION ; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES ; CONTROLLING COMBUSTION ENGINES ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; LIGHTING ; MECHANICAL ENGINEERING ; PERFORMING OPERATIONS ; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES ; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT ; TRANSPORTING ; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF ; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES ; VEHICLES IN GENERAL ; WEAPONS</subject><creationdate>2015</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150202&DB=EPODOC&CC=JP&NR=2015020626A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150202&DB=EPODOC&CC=JP&NR=2015020626A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SAITO TAKAMASA</creatorcontrib><title>TRACTION CONTROL SYSTEM</title><description>PROBLEM TO BE SOLVED: To provide a traction control system which can perform brake torque control when a road is changed to a split μ road from a low μ road, and can secure the acceleration performance of a vehicle.SOLUTION: A traction control system comprises: a hydraulic control unit HU which can independently impart brake torque to drive wheels of a vehicle; wheel speed sensors 2FL, 2FR, 2RL, 2RR which detect speeds of the respective wheels; drive wheel left-and-right speed difference detection means which calculates a drive wheel left-and-right speed difference V; brake torque control means which imparts brake torque to the drive wheels in accordance with the speeds of the respective drive wheels; and first operation start speed threshold determination means which determines a start speed of the brake torque control. When the drive wheel left-and-right speed difference is larger than a drive wheel left-and-right speed difference threshold, the first operation start speed threshold determination means changes the control start speed to a lower value when the difference is smaller than the threshold.
【課題】 低μ路からスプリットμ路へ変化したときに制動トルク制御を作動させることができ、車両の加速性能を確保できるトラクションコントロールシステムを提供する。【解決手段】 車両の各駆動輪に対して独立に制動トルクを付与可能な液圧制御ユニットHUと、各車輪の速度を検出する各車輪速センサ2FL,2FR,2RL,2RRと、駆動輪左右速度差 VDLRを算出する駆動輪左右速度差検出手段と、各駆動輪の速度に応じて各駆動輪に制動トルクを付与する制動トルク制御手段と、制動トルク制御の開始速度を決定する第１の作動開始速度閾値決定手段と、を備え、第１の作動開始速度閾値決定手段は、駆動輪左右速度差が駆動輪左右速度差閾値よりも大きい場合には小さい場合よりも制御開始速度を小さく変更する。【選択図】 図１</description><subject>ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL</subject><subject>BLASTING</subject><subject>BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL</subject><subject>COMBUSTION ENGINES</subject><subject>CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION</subject><subject>CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES</subject><subject>CONTROLLING COMBUSTION ENGINES</subject><subject>HEATING</subject><subject>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>PERFORMING OPERATIONS</subject><subject>PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES</subject><subject>ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT</subject><subject>TRANSPORTING</subject><subject>VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF</subject><subject>VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES</subject><subject>VEHICLES IN GENERAL</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2015</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBAPCXJ0DvH091Nw9vcLCfL3UQiODA5x9eVhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGhqYGRgZmRmaOxkQpAgAoqyAM</recordid><startdate>20150202</startdate><enddate>20150202</enddate><creator>SAITO TAKAMASA</creator><scope>EVB</scope></search><sort><creationdate>20150202</creationdate><title>TRACTION CONTROL SYSTEM</title><author>SAITO TAKAMASA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2015020626A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2015</creationdate><topic>ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL</topic><topic>BLASTING</topic><topic>BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL</topic><topic>COMBUSTION ENGINES</topic><topic>CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION</topic><topic>CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES</topic><topic>CONTROLLING COMBUSTION ENGINES</topic><topic>HEATING</topic><topic>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>PERFORMING OPERATIONS</topic><topic>PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES</topic><topic>ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT</topic><topic>TRANSPORTING</topic><topic>VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF</topic><topic>VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES</topic><topic>VEHICLES IN GENERAL</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>SAITO TAKAMASA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SAITO TAKAMASA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>TRACTION CONTROL SYSTEM</title><date>2015-02-02</date><risdate>2015</risdate><abstract>PROBLEM TO BE SOLVED: To provide a traction control system which can perform brake torque control when a road is changed to a split μ road from a low μ road, and can secure the acceleration performance of a vehicle.SOLUTION: A traction control system comprises: a hydraulic control unit HU which can independently impart brake torque to drive wheels of a vehicle; wheel speed sensors 2FL, 2FR, 2RL, 2RR which detect speeds of the respective wheels; drive wheel left-and-right speed difference detection means which calculates a drive wheel left-and-right speed difference V; brake torque control means which imparts brake torque to the drive wheels in accordance with the speeds of the respective drive wheels; and first operation start speed threshold determination means which determines a start speed of the brake torque control. When the drive wheel left-and-right speed difference is larger than a drive wheel left-and-right speed difference threshold, the first operation start speed threshold determination means changes the control start speed to a lower value when the difference is smaller than the threshold.
【課題】 低μ路からスプリットμ路へ変化したときに制動トルク制御を作動させることができ、車両の加速性能を確保できるトラクションコントロールシステムを提供する。【解決手段】 車両の各駆動輪に対して独立に制動トルクを付与可能な液圧制御ユニットHUと、各車輪の速度を検出する各車輪速センサ2FL,2FR,2RL,2RRと、駆動輪左右速度差 VDLRを算出する駆動輪左右速度差検出手段と、各駆動輪の速度に応じて各駆動輪に制動トルクを付与する制動トルク制御手段と、制動トルク制御の開始速度を決定する第１の作動開始速度閾値決定手段と、を備え、第１の作動開始速度閾値決定手段は、駆動輪左右速度差が駆動輪左右速度差閾値よりも大きい場合には小さい場合よりも制御開始速度を小さく変更する。【選択図】 図１</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL BLASTING BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL COMBUSTION ENGINES CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT TRANSPORTING VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL WEAPONS |
| title | TRACTION CONTROL SYSTEM |
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